90870456 divided by 770 
We want to figure out the number of times 90870456 can be divided by 770.

Going ahead to step 1:
770 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 770

Step 2:
The number 770 fits into 90 0 times, leaving a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Bring next digit (8) of the dividend behind the 90 and repeat the process: 908 / 770

Moving on to step 3:
When dividing 908 by 770, we get 1 with a remainder of 138.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 138 after subtracting 770 from 908.
Bring next digit (7) of the dividend behind the 138 and repeat the process: 1387 / 770

On to step 4:
When dividing 1387 by 770, we get 1 with a remainder of 617.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we subtract 770 from 1387, we get 617.
Fetch the next digit (0) from the dividend, attach it to 617 and continue: 6170 / 770

Moving on to step 5:
770 can be fit into 6170 8 times, resulting in a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
The remainder is 10 after subtracting 6160 from 6170.
Grab the next digit (4) from the dividend, add it to 10, then carry on: 104 / 770

On to step 6:
The number 770 fits into 104 0 times, leaving a remainder of 104.
Put 0 as the next digit of the answer. 
Result so far: 1180.0
Subtract 0 from 104 to get 104.
Append the next digit (5) from the dividend to 104 and continue with: 1045 / 770

Moving on to step 7:
The number 770 fits into 1045 1 times, leaving a remainder of 275.
The next digit of our result is 1. 
Result so far: 11801.0
If we take 770 away from 1045, we end up with 275.
Include the next digit (6) from the dividend after 275, then repeat: 2756 / 770

Advancing to step 8:
770 goes into 2756 3 times with a remainder of 446.
Record the quotient 3 as the next digit in the result. 
Result so far: 118013.0
Subtracting 2310 from 2756 leaves us with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 9:
4460 divided by 770 is 5 with a remainder of 610.
Write down 5 as next digit of the result. 
Result so far: 118013.5
Deduct 3850 from 4460 and we're left with 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Advancing to step 10:
6100 divided by 770 is 7 with a remainder of 710.
Use 7 as the next digit of our solution. 
Result so far: 118013.57
If we subtract 5390 from 6100, we get 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

On to step 11:
770 goes into 7100 9 times with a remainder of 170.
Put 9 as the next digit of the answer. 
Result so far: 118013.579
Subtracting 6930 from 7100 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 12:
If we divide 1700 by 770, we get 2 and a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 118013.5792
If we subtract 1540 from 1700, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
770 can be fit into 1600 2 times, resulting in a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 118013.57922
If we subtract 1540 from 1600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 118013.57922, with a leftover of 6e-05.